Granted Patent
Utility
US 4,774,295 · App. 06/940,295
Polymer mixtures and covulcanizates produced therefrom
Inventors:
Hartmuth Buding, Heinrich Konigshofen, Zsolt Szentivanyi, Joachim Thormer
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: Dec 11, 1986
Inventors
Hartmuth Buding
Heinrich Konigshofen
Zsolt Szentivanyi
Joachim Thormer
Assignee (at issue)
Bayer Aktiengesellschaft
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.